[Design of a novel automatic gastric lavage machine]

In this paper, the design of a safe and multifunctional gastric lavage machine is presented. The microprocessor samples and analyzes the air pressure, time rate of pressure change, volume, and limit signals, then controls the relays and the electromagnetism valves to adjust the operating condition in real time. The machine has many functions, such as gastric lavage, aspirating, digital displaying, alarming, and so on.